one
Charge the charging box.
two
The charging interface of the Philips shb2505bk headphone charging case is on the back of the case, and you can see that the USB charging interface is used.
three
The earphone will give you a USB charging cable.
four
Plug the smaller end of the charging cable into the charging port of the charging case, and connect the larger end of the charging cable to the USB power supply or connect it to the USB charging connector and plug it into the power supply.
five
After charging successfully, the indicator light on the case face will light up. When all four indicators are steady on, the charging case is fully charged. It usually takes about 2 hours to fully charge, and then the power can be turned off.
For this issue, use a Micro-USB cable to connect the charging case to a power source or computer USB port, then put the wireless headphones into the charging case, and the charging case will automatically start charging. The charging case usually takes about 1-2 hours to be fully charged. During the charging process, the LED indicator will blink, and after the charging is completed, the indicator will stop blinking and remain on.